Transcript in 2014, and 2015

ILC Status in Japan
Progress in JFY2015
Akira Yamamoto
A report on 28 July, 2015
150421
ILC being studied in Japan
SCJ
Recommendation
in 2013
MEXT
ILC Taskforce
formed in 2013
Commissioned
Survey by NRI
Academic Experts Committee
in JFY 2014 ~ 2015
( in 2014, and 2015)
planned
Particle & Nuclear Phys.
Working Group
TDR Validation
Working Group
Human Resource
Working Group
in 2014 ~ 2015
in 2014 ~ 2015
in 2015
planned
15/05/11
MEXT Commissioned Survey
2
Progress in MEXT Academic Expert Committee for the ILC
http://www.mext.go.jp/b_menu/shingi/chousa/shinkou/038/attach/1353571.htm
Particle and Nuclear Physics WG
TDR Verification WG (* closed mtg）
1st Academic Expert Committee (14/05/08)
1st : 6/24
Status and Prospect for Particle Physics
ILC Project and the Physics
1st: 6/30
TDR and the cost, generally reported
2nd : 7/29
Strategies at EU and Ams
2nd : 7/28*
SRF and the cost
3rd : 8/27
Cosmic-ray and astrophysics
ILC Science Objectives
3rd: 9/8*
SRF and the cost (continued)
CFS
4th : 9/22
Flavor and Neutrion Physics
IILC Science Objectives
4th: 11/4*
ILC construction cost
5th : 10/21
Summary discussion for a report
2nd Academic Expert Committee (14/11/14)
6th : 1/8
Experience from SSC
ILC Science Objectives
5th：1/26*
ILC Accelerator and human resources
7th : 2/17
Science Objectives per
6th ：3/2*
Summary discussions
8th : 3/30
Summary discussion for a report
3rd Academic Expert Committee (15/4/21)
4th Academic Expert Committee (15/6/25)
3
Interim Recommendations
from the 4th Academic Experts Committee
(Draft and informally translated by a KEK Scientist)
1.
The ILC project requires huge investment, which is too big for a single country
to cover, hence its international cost sharing is indispensable. From the
viewpoint that the scientific case for the ILC should match the scale of the
investment, new particle discovery should be anticipated in addition to the
precision measurements of the Higgs particle and the top quark so as to
bring about novel development that goes beyond the standard model.
2.
Since the judgment on the adequacies of the ILC performance and
anticipated outcomes should be based on the results from the on-going LHC
experiments scheduled until the end of 2017, it is necessary to closely watch,
analyze, and evaluate how the situation of the LHC experiment will develop.
It is also necessary to clarify prospects for solving technological issues and
risk reduction concerning the project cost.
3.
While putting in perspective the whole picture of the project including items
listed in No.1 and No.2 above, it is important to obtain understanding from
the general public and communities of other fields of science.
Human Resource WG in preparation
at MEXT
• Objectives to: verify prospects of human resource and training to be
sufficiently provided for construction of the ILC
• Period: July ~ December, 2015,
• Meeting times: 4~5 times
• Subject to be studied,
– Prospects for necessary human resource in each country to be realized for
construction, operation, and management
– Issues for training of senior members for their leadership,
– Issues for senior members for management of the international organization,
• General plan (for hearing)
–
–
–
–
Report of the human resource plan (which was reported to TDR-WG,
Hearing from some representing major projects related to ILC (such as LHC)
Hearing from industrial partners for preparing the ILC scale manufaturing
Discussions on the report to be submitted to “Academic Experts Committee”
• Note: MEXT is now asking us to assist the MEXT’s actions, specially to receive
industrial partner’s input and contribution to the discussion.
JFY2015, 2nd Commissioned Survey by
MEXT
contracted with Nomura Research Institute (NRI)
• Subjects for survey and analysis:
– Technical feasibility to realize the ILC
• Regarding components, system design, management, and
infrastructure
– Technical issues to prepare for the ILC construction
• Regarding industrial technology, and necessary time-scale,
and prototype works.
• Cost increase risk
– Cost reduction possibility
• with technical approaches not described in TDR
Progress and Plan
7/10: ILC progress report pre-explained to NRI
7/23: The report to be presented at NRI
7/15:
7/?
Appointment requests sent out by NRI to
European laboratories and companies
- DESY, CEA-Saclay, LAL-Orsay,
INFN-LASA, INFN-Frascati, CERN,
STFC Daresbury, and Industries
Requests to be sent out to US Lab/Ind.
- SLAC, Fermilab, JLab
In response to the Status in Japan
LCC-ILC Progress Report prepared
to be useful for further surveys and studies in 2015
• It contains the LCC-ILC technical progress after TDR,
respecting:
–
–
–
–
Civil engineering studies
Accelerator hardware design/development updates
Accelerator system layout updates
Integration/test facilities to be prepared for “hublaboratory functioning
– Project Implementation Plan
– Further preparatory work
• It may be useful as a reference document for any
survey and/or evaluation on the ILC activities.
TDR 後のハイライト： Technical Highlights after TDR
• ナノビーム：Nano-beam
•
ATF2: reached 44 nm at the final focus, closing the primary goal of 37 nm
‒
Corresponding to 7 nm at the ILC energy (250 GeV/beam) with the goal of 6 nm
• 超伝導高周波：SRF
•
EXFEL: exceeded > 75 % ( > 600/800) cavity production, and > 40 % (> 40/100 ) cryomodule
assembly and test
Fermilab-ASTA: reached the ILC specification gradient
SLAC-LCLS: started the project in consortium with the US SRF laboratories
KEK-STF2: completed CM1+CM2a installation into the beam line
•
•
•
• 加速器設計：Accelerator Design and Integration (ADI)
•
LCC: processed Post-TDR design update with a model-site assumption
‒
‒
‒
•
15/07/23
Common L* for both detectors of ILD and SiD
Vertical access at Detector Hall at IR points
Extension of ML tunnel for optimizing e+e- collision timing and for redundancy of ML SRF cavity
gradient integration
LCC: is continuing to seek for potential cost saving in balance to necessary increase
ILC Progress Report
9
ILC 実現にむけた課題：Issues to prepare for ILC Realization
Themes
Issues/Subjects
Global Cooperation/work-sharing
加速器設計
ADI
Acc. Parameter optimization & eng.
Design Change Management (CM)
LCC-ILC-ADI to take a central role with
global cooperation
超伝導高周波
SRF
Mass-production & Testing technology
 Hub-lab functioning to be balanced
Stabilization of the performance
TTC Collab., as a worldwide community
- KEK-STF: Hub-Lab function
- EXFEL: mass production and testing
- LCLS : mass production and testing
極小ビーム
Nano-beam
Ultra low emittance,
Nano-beam, and the stability
ATF Collab., as a worldwide community
- KEK-ATF as a globalyl unique
陽電子源
E+ source
Reliable positron source,
- Backup scheme under development
PosiPol collaboration
施設
CFS
Site-specific CFS design, env. assess.
General plan, eng. Design, drawings
JP-CFS to serve a central role in
cooperation with global experts.
運営
Management
ILC 国際研究所の実現にむけた準備
Preparation for the int’l ILC laboratory
ICFA, LCB
A main Issue for the ILC to be prepared
15/07/23
ILC Progress Report
10
設計改定管理(改善・アップデートの基本プロセス
Change Management: The Basic Path
提案
Propose
15/07/23
評価
Review
ILC Progress Report
決定
Decide
実施・具体化
Implement
11
TDR 以降の設計の進展：ILC Acc. Design Updates after TDR
•
•
Objectives: :
‒ Further optimize the ILC accelerator design parameters, assuming a site model
in Japan, and to seek for the best cost-effective construction,
有識者会議からの
Process for the Change Management:
提言に応える努力
Decision
Note
CR-001
Add return “Dogleg” to target by-pass
No approved
CR-002
Adapt equal L* (4.1 m) for both detectors
Approved
共通設計、信頼性向上
CR-003
Detector hall with vertical shaft access
Approved
建設期間の確度向上
CR-004
Extension of the e-e+ ML tunnels by about 1.5 km Approved
CR-005
Update top-level parameter
Approved
CR-006
Add BPM down stream of QD0
Approved
CR-007
Adoption of the Asian design as sole baseline
Approved
CR-008
Formal release TDR 2015a lattive
Approved
CR-TBD
ML tunnel central call to be thinner
To be evaluated
ビーム加速中アクセスなし
CR-TBD
Cryogenics system mainly on surface
To be evaluated
安全対応
CR-TBD
BDS timmel allowing e-driven e+ source in parallel
To be evaluated
陽電子源・確度向上
CR-TBD
Cost effective SRF cavity integration
In discussion
SRF 空洞コストの信頼性
15/07/23
ILC Progress Report
500 GeV 、到達確度向上
加速器設計値の確度
TDR をアジア版に統一
12
Change Request: CR-0003
衝突点実験室への縦（竪）坑アクセス
15/07/23
ILC Progress Report
13
Change Request: CR-0004
メインライナック・トンネル長の延伸
e+-e-衝突タイミング調整、500 GeV達成への冗長性確保
15/07/23
ILC Progress Report
14
Change Request: TBD
メインライナック・中央壁厚の減少
トンネル入域をSRF Commissioning のみ、
>> トンネル延伸と合わせ、コスト制御・最適化
15/07/23
ILC Progress Report
15
CR: TBD 陽電子源の技術実証、対応
Positron Source Technology to be demonstrated
Captur
e
section
15/07/23
ILC Progress Report
16
Tunnel
• It is still best to use the baseline scheme, but must prepare
for the case starting with the conventional scheme
• A tunnel that can
accommodate both
sources being designed
Conventional Source
•
•
•
•
•
Undulator Source
3.3
3.
1
2.9
2.7
2.5
2.3
2.1
1.9
1.7
1.5
1.3
Distance from IP (km)
1.1
0.9
0.7
0.5
Top: service
tunnel
Bottom:
accelerator tunnel
Blue: baseline
source
Red: conventional
source
0.3
17
Change Request: TBD
安全・経済的な主要冷却機器の地上配置
Cryogenics Layout with more safety
15/07/23
ILC Progress Report
18
10. 更に推進すべき準備・技術開発 (1)
Further Preparatory Work (1)
10.1 General
– It is anticipated that preparation (w/ appropriate funding) will take about 4 years
10.2 超伝導高周波技術：SRF technology
– Nb material, cutting sheet from Ingot w/ control grain size
– Tuner in cooperation w/ LCLS-II
– Coupler value engineering w/ simplified structure and new ceramic w. optimized
process of CM assembly.
– Long term effort for further gradient to scope 1 TeV upgrade,
• Hydro-forming w/ seamless Nb cylilnder, or Cu cylinder followed by surface
coating w/ Nb.
• High-Q realization w. new surface treatment or doping technology
– Mitigation of degradation during the process of the CM assembly
10.3 SRF 電力供給のための電源：Modulator industrialization for SRF
– Demonstration of the industrial manufacturing and long-term reliability
15/07/23
ILC Progress Report
19
10. 更に推進すべき準備・技術開発 (2)
Further Preparatory Work (2)
10.4 試験システム技術・人材養成 Test/Qualification infrastructure at KEK
– Full prototype cryomodules under high power in which a beam can be
accelerated must be completed with the highest priority.
– An assembly and cryogenic-test hall at KEK must be equipped with the entire
infrastructure necessary for integrating full CMs and for testing, to
demonstrate the capability of series production rate.
10.5 極小ビーム技術：Nano-beam technology
– The effort at the accelerator test facility (ATF) at KEK must be continued to
achieve the technical goals of both the beam size and the stability at the final
focus, providing sufficient operational margin.
10.6 陽電子源：Positron production
– The positron source is challenging. Further effort must be put into the
undulator-based design including the convertor target. In parallel an
alternative design using conventional means (which will exclude polarised
positrons) must be pursued asILCaProgress
backup
solution.
15/07/23
Report
20
11. まとめ：Summary
•
ILCの技術設計は、アジア山岳サイトをモデルとし、綿密な検討、管理のもと、設
計がさらに進展。TDR 後、実施された文科省・有識者会議（およびTDR検証WG)
からの提言を迅速反映しつつ設計のさらなる改善・最適化を進めている。
– The ILC technical design is now being adapted to the preferred candidate site. Changes
in layout are being managed by a rigorous change-control procedure.
•
欧州自由電子レーザ(EXFEL) 建設の進捗により、超伝導加速空洞工業技術が着
実な進展、ILC の技術的実現性を実証しつつある。
– Series production of cavities for the European XFEL has shown that cavities can be massproduced in industry with a performance well above XFEL requirements and close to
that needed for the ILC.
•
ILC 建設にむけた、更なるコスト確度向上、節減への努力が重ねられている。
– A number of technical developments are under way with a view to further reducing the
ILC cost. This work must continue through the preparatory stage for ILC construction
once resources become available.
15/07/23
ILC Progress Report
21
Progress and Plan
7/10: ILC progress report pre-explained to NRI
7/23: The report to be presented at NRI
7/15:
7/?
Appointment requests sent out by NRI to
European laboratories and companies
- DESY, CEA-Saclay, LAL-Orsay,
INFN-LASA, INFN-Frascati, CERN,
STFC Daresbury, and Industries
Requests to be sent out to US Lab/Ind.
- SLAC, Fermilab, JLab
Plan for visiting European Laboratories
and Industries
9/28:
9/29:
9/30:
10/1:
10/2:
10/5:
10/6:
10/7:
10/8:
15/07/23
BN?
INFN-LASA, E-Zanon
CERN
DESY
RI
CEA-Saclay, Alsyom, AL, APERAM
LAL-Orsay, Thales
STFC Daresbury Lab.
reserved.
ILC Progress Report
23
Plan for visiting US Laboratories and
Industries (tentative)
11/8:
11/9:
11/10:
11/12:
11/13:
15/07/23
SLAC, CPI
Fermilab
ROARK
AES
JLab,
ILC Progress Report
24